In Europe, there are various quality frameworks to qualify building airtightness testers 1,2,3,4, including: Country Competent scheme operator Mandatory for testers? References Belgium (Flanders) BCCA Yes BCCA , [5] Czech Republic A.BD_CZ (Association Blower Door CZ) No A.BD_CZ Denmark DS certification ? Danske … Continue reading →
A calibration should be carried out by an ISO17025 accredited lab. Sometimes in some specific context it is allowed to have the calibration done by: a lab that has standards traceable to ISO17025 accredited calibrations the manufacturer the user of … Continue reading →
Overall most of products are tested according to EN12114 (air permeability of building components) or EN 1026 (airtightness of windows) either internally or externally. The most known way of certifying products is through Passive House Institute in Germany [1], the … Continue reading →
Poor building airtightness results in excessive air infiltration and resultant uncontrolled energy loss. The energy use increase is dependent on the infiltration flow rate and the amount of conditioning of the air that is necessary to achieve thermal comfort. The infiltration … Continue reading →
Wind creates a heterogeneous pressure distribution around the building and induces a pressure difference between indoor and outdoor even when the fan is turned off. The impact of wind can be partly compensated by measuring and subtracting this zero-flow pressure and … Continue reading →
Duct tester systems designed to conduct air tightness tests on duct systems can sometimes be used to test building air tightness. The fans used in these systems have a much lower flow capacity than a standard blower door system, which means … Continue reading →
TightVent Europe has published a list of applicable standards for building and ductwork airtightness. The detailed list can be found here.
Continue reading →Good building airtightness is achieved in 3 steps: Plan – Build – Check. The building airtightness requirement is defined in the design phase of the building. The air barrier is then drawn in design and execution plans, and materials and … Continue reading →
In most European countries the building preparation is based on ISO 9972 requirements. However, the interpretation of these requirements may differ from one country to another, and based on different building preparation rules. Building preparation errors are probably the dominant … Continue reading →
Airtightness durability is a growing issue in Europe and the US. In the long-term, it seems that some specific sealing products have durable performances but on-site studies have shown that many factors can deteriorate the airtightness durability of wall assemblies … Continue reading →
